Something to keep in mind about OCCT is that it has a temp shut-down feature which is enabled by default. If you're running your chip high according to coretemp but it's still within your "acceptable risk" window under realtemp you'll find that OCCT seems to use the same formula as coretemp so it could shut down based on that. (There is a setting to raise that temp).

I doubt however that a shutdown after almost 2 hours of OCCT is a cpu temp issue.

Ok i ran prime 95 for the last 13 hours no problems , ran Occt again for 2 hours on mix (changed the temp rating to 99 c) no problems said all is stable , so i am just waiting to finish downloading 3dmark 06 and run it:)

__________________
I USE EMT ONLY
Remember... Four boxes keep us free: the soap box, the ballot box, the jury box, and the cartridge box.